Structural evaluation method, structural evaluation program, and structural evaluation device

摘要

PROBLEM TO BE SOLVED: To accurately evaluate a multi-degree-of-freedom system structure which receives different input vibrations or a single input vibration from a plurality of or a single support points. The method relates to a method for assessing the structure of a structure having a plurality of vibration modes that receive a plurality of different input vibrations or a single input vibration from a plurality of or a single support point. In the response calculation step, the floor response spectrum corresponding to the input to each support point is used to obtain the response value corresponding to each of the vibration modes of the structure for each input to the support point. In the response synthesis step, the response values are combined using the correlation coefficient, and the combined response of all vibration modes of the structure due to the vibration of a plurality of support points is calculated. The correlation coefficient shows the correlation between the dynamic responses of the structures for each vibration mode to the time history input of each support point. [Selection diagram] Fig. 4